Self-limiting chemical vapor deposition and atomic layer deposition methods
    1.
    发明授权
    Self-limiting chemical vapor deposition and atomic layer deposition methods 有权
    自限制化学气相沉积和原子层沉积方法

    公开(公告)号:US09305780B2

    公开(公告)日:2016-04-05

    申请号:US14561525

    申请日:2014-12-05

    Abstract: Methods for depositing silicon on a semiconductor or metallic surface include cycling dosing of silane and chlorosilane precursors at a temperature between 50° C. and 300° C., and continuing cycling between three and twenty three cycles until the deposition self-limits via termination of surface sites with Si—H groups. Methods of layer formation include depositing a chlorosilane onto a substrate to form a first layer, wherein the substrate is selected from the group consisting of InxGa1-xAs, InxGa1-xSb, InxGa1-xN, SiGe, and Ge, wherein X is between 0.1 and 0.99. The methods may include pulsing a silane to form a silicon monolayer and cycling dosing of the chlorosilane and the silane. Layered compositions include a first layer selected from the group consisting of InxGa1-xAs, InxGa1-xSb, InxGa1-xN, SiGe, and Ge, wherein X is between 0.1 and 0.99, and a second layer, wherein the second layer comprises Si—H and Si—OH.

    Abstract translation: 在半导体或金属表面上沉积硅的方法包括在50℃和300℃之间的温度下循环给予硅烷和氯代硅烷前体,并在三到二十三个循环之间持续循环,直到通过终止 具有Si-H基团的表面位点。 层形成方法包括在衬底上沉积氯硅烷以形成第一层,其中衬底选自In x Ga 1-x As,In x Ga 1-x Sb,In x Ga 1-x N,Si Ge和Ge,其中X在0.1和 0.99。 所述方法可以包括脉动硅烷以形成硅单层并循环给予氯硅烷和硅烷。 层状组合物包括选自In x Ga 1-x As,In x Ga 1-x Sb,In x Ga 1-x N,Si Ge和Ge中的第一层,其中X为0.1至0.99,第二层为第二层,其中第二层包含Si-H 和Si-OH。

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